Insulating a loft with NO internal hatch access

[Clairez81]

Hello,
I am new to this so please bear with me.
We moved into our house last Nov and two rooms were very cold and Both have no access to the roof space.

The First room is the 4th Bedroom that was build as a 1st Floor extension 5 years ago. There is no access to the roof space from within the room or from within the main loft space as they did not knock through.

The Second room is the ground floor 1 storey extension that is 20 year old.
There is no loft hatch in this room either. This room is like an ice cube in winter, but we are having new windows installed this week to help keep the heat in this room, but again i do not know what insulation, if any is above this room.

Could someone tell me what options i have to get insulation above these two rooms that will not cost the Earth!

Will i need to take part of the roof off and come in from that way?
Or will i need to put in hatches. (It would look odd in the down stairs room)
Or will both ceiling need to come down?
Or is there another method?

Advice would be greatly appreciated.

Claire

 

[ladylola]

Probably would be better to gain access from underneath cutting a small section of plasterboard out large enough to climb through.
Simply to repair too just reboard and skim in.